ZWO 31mm SII 7nm Filter Unmounted (ZWO-SII7NMD31) Mini Infrared wavelength 700-1100nm cut-off

Infrared wavelength 700-1100nm cut-off

Compatible Optics: Telescopes

polycarbonate housing protects your Nature DX ED binoculars from damage

000 object database with over 100 user-definable objects and expanded information on over 200 objects

The Evostar 150ED comes in a foam-lined aluminum case with tube rings

ZWO 31mm SII 7nm Filter Unmounted (ZWO-SII7NMD31) Mini Infrared wavelength 700-1100nm cut-offNarrowband filter do not eliminate the effects of light pollution or increase the objects brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO narrowband S II 7nm filter passes light at 672nm wavelength with a bandpass of 7nm which is designed for nebula observation . It is suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants, use it with H